湖泊科学2017，Vol.29Issue(6)：1386-1397,12.DOI:10.18307/2017.0611
巢湖流域水生植物多样性
Diversity of aquatic plants in Chaohu Basin
摘要
Abstract
The abundance and composition of aquatic plants have great effect on shallow lakes or river ecosystems.The diversity of aquatic plants from rivers and lakeshore zone in Chaohu Basin were investigated in April and July,2013.The flora of aquatic plants was analyzed and the species diversity was assessed.Results showed that:The species number of aquatic plants was relatively high.There were total 123 species belonged to 43 families and 85 genera,among of which there were about 5 families,6 genera,6 species in Pteridophyta,25 families,39 genera,63 species in Dicotyledoneae and 13 families,40 genera,54 species in Monocotyledoneae.Hygroryza aristata was first recorded in Anhui Province.Gramineae,Polygonaceae and Cyperaceae were the dominant families.The preponderant genera included Polygonum,Potamogeton and Trapa.The percentage of the genera including only 1 species or 2-4 species accounted for 96.5％.The dominant species were Alternanthera philoxeroides,Phragmites australis,Potamogeton crispus,Trapa sp.,Ceratophyllum clemersum,and Hydrilla vertieillata.At family level,there were 6 distribution types.The proportion of the cosmopolitan type was highest and reached 55.81％,and the tropic elements(11 families) were more than temperate ones (8 families).At genus level,there were 13 distribution types.The cosmopolitan type was 36.47％ and the pantropic type was 20.0％.Alpha diversity was highest in the Baishitian River,and was lowest in the Nanfeihe River.Serious water pollution could be the main reason accounting for the lower species diversity in the Nanfeihe River.关键词
巢湖流域/水生植物/多样性Key words
Chaohu Basin/aquatic plant/diversity引用本文复制引用
王金霞,孟炜淇,李国祥,高俊峰,蔡永久,张庭廷,刘坤..巢湖流域水生植物多样性[J].湖泊科学,2017,29(6):1386-1397,12.基金项目
国家水体污染控制与治理科技重大专项(2012ZX07501-002-008)、安徽省皖江城市带退化生态系统的恢复与重建协同创新中心项目和国家自然科学基金项目(31170443)联合资助. （2012ZX07501-002-008）
